US5429545AExpiredUtility
Pad for wetcleaning porcelain greenware and method
Priority: Aug 30, 1993Filed: Aug 30, 1993Granted: Jul 4, 1995
Est. expiryAug 30, 2013(expired)· nominal 20-yr term from priority
Inventors:Josephine R. Meyer
B24D 11/00A47L 13/17B24D 15/04
74
PatentIndex Score
66
Cited by
10
References
12
Claims
Abstract
A pad for cleaning porcelain greenware comprising an abrasive sheet for contacting and cleaning porcelain greenware; a foam backing member; and a glue secured to the abrasive sheet and to the foam backing member for securing together the abrasive sheet and the foam backing member. A process or a method for wetcleaning porcelain greenware comprising the steps of: providing a porcelain greenware; providing a container with water; providing the pad; contacting the porcelain greenware and the pad with the water; and sliding the abrasive sheet against the porcelain greenware.
Claims
exact text as granted — not AI-modifiedI claim:
1. A pad for wet cleaning porcelain greenware comprising an abrasive means for contacting and cleaning porcelain greenware; a foam backing member; and a glue being a colloidal suspension of proteinaceous materials in water and secured to said abrasive means and to said foam backing member for securing together the abrasive means and the foam backing member; said glue comprises a vinyl acetate polymer emulsion; said vinyl acetate polymer emulsion comprises from about 10% by wt. to about 49.0% by wt. aqueous phase and from about 51.0% by wt. to about 99.0% by wt. polyvinyl acetate; and said vinyl acetate polymer emulsion is waterproof when dried; said abrasive means for contacting and cleaning porcelain greenware comprises from about 45.0% by wt. to about 70% by wt. nonwoven fibers, from about 10.0% by wt. to about 30% by. wt. aluminum oxide, and from about 5.0% by wt. to about 15.0% by wt. of an adhesive; said foam backing member comprises a flexible agent selected from a consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof; said foam backing member comprises a density ranging from about 0.2 lb/cu.ft. to about 15.0 lb/cu.ft.
2. The pad of claim 1 wherein said foam backing member comprises a first backing member and a second backing member bound to said first backing member and to said glue.
3. The pad of claim 2 wherein said first backing member comprises a first flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof, and said second backing member comprises a second flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof.
4. The pad of claim 3 wherein said first backing member comprises a density ranging from about 0.2 lb/cu.ft. to about 8.0 lb/cu.ft., and said second backing member comprises a density ranging from about 8.01 lb/cu.ft. to about 15.0 lb/cu.ft.
5. The pad of claim 1 wherein said foam backing member comprises a first backing member and a second backing member bound to said first backing member and to said glue.
6. The pad of claim 5 wherein said first backing member comprises a first flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof, and said second backing member comprises a second flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof.
7. The pad of claim 6 wherein said first backing member comprises a density ranging from about 0.2 lb/cu.ft. to about 8.0 lb/cu. ft., and said second backing member comprises a density ranging from about 8.01 lb/cu.ft. to about 15.0 lb/cu.ft.
8. The pad of claim 7 wherein said pad includes being wetted with water such that water is retained by at least one of said first backing member and said second backing member and being adaptable for wetcleaning porcelain greenware which has been wetted with water.
9. A pad for wet cleaning porcelain greenware comprising an abrasive means for contacting and cleaning porcelain greenware; a foam backing member; and a glue being a colloidal suspension of proteinaceous materials in water and secured to said abrasive means and to said foam backing member for securing together the abrasive means and the foam backing member; said glue comprises a vinyl acetate polymer emulsion; said vinyl acetate polymer emulsion comprises from about 1.0% by wt. to about 49.0% by wt. aqueous phase and from about 51.0% by wt. to about 99.0% by wt. polyvinyl acetate; and said vinyl acetate polymer emulsion is water proof when dried; said abrasive means for contacting and cleaning porcelain greenware comprises from about 45.0% by wt. to about 70% by wt. nonwoven fibers, from about 10.0% by wt. to about 30% by wt. aluminum oxide, and from about 5.0% by wt. to about 15.0% by wt. of an adhesive; said foam backing member comprises a flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof.
10. The pad of claim 9 wherein said foam backing member comprises a first backing member and a second backing member bound to said first backing member and to said glue.
11. The pad of claim 10 wherein said first backing member comprises a first flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof, and said second backing member comprises a second flexible agent selected from a group consisting of polyurethane, rubber latex, polyethylene, vinyl polymers, and mixtures thereof.
12. The pad of claim 11 wherein said first backing member comprises a density ranging from about 0.2 lb/cu.ft. to about 8.0 lb/cu.ft., and said second backing member comprises a density ranging from about 8.01 lb/cu.ft. to about 15.0 lb/cu.ft.Join the waitlist — get patent alerts
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